Question 1

Universal standard precautions written by OSHA are designed to:

Accepted Answer

Universal standard precautions are specifically designed to prevent the spread of infectious diseases in workplaces. They outline safety procedures to be followed by employees to protect themselves from possible contamination.

Question 2

What is the best substance to use for cleaning oil from microscope objectives?

Accepted Answer

B

Question 3

Which of the following is true regarding acceptable fire safety?

Accepted Answer

A written fire protection and response plan must be in place and tested regularly to ensure preparedness and compliance with safety regulations.

Question 4

What is the best source of information regarding the nature of a chemical and its hazards?

Accepted Answer

Material safety data sheets (MSDS) provide detailed information on the nature of a chemical, its potential hazards, and information on how to handle and dispose of the chemical safely. It is the best source of information regarding the safe handling and usage of a chemical. Coworkers and supervisors may have some knowledge, but may not have all the necessary details regarding the chemical and its hazards. The label on the bottle may also provide basic information, but it may not be sufficient for safe handling and usage.

Question 5

Safety training must be provided and documented at the time of initial assignment and how often thereafter?

Accepted Answer

Safety training must be provided and documented annually, as stated in OSHA regulations.

Question 6

Which of following requires wearing a face shield or eye goggles?

Accepted Answer

Cleaning up an acetic acid spill requires wearing a face shield or eye goggles to protect against splashes and fumes.

Question 7

Which laboratory specimens must be treated with standard (universal) precautions?

Accepted Answer

All human blood and body fluids should be treated with standard (universal) precautions, regardless of the patient's known disease status or the type of specimen being collected. This includes specimens such as urine, cerebrospinal fluid, and stool, in addition to blood specimens.

Question 8

A 10% solution of household bleach is used to clean contaminated surfaces in the clinical laboratory. This 10% solution should be prepared:

Accepted Answer

Household bleach solutions lose their potency over time due to factors such as exposure to light, air and heat, and therefore should be prepared fresh daily to ensure their effectiveness in killing microorganisms.

Question 9

Who is responsible for laboratory employee safety?

Accepted Answer

All of the above parties are responsible for laboratory employee safety. OSHA sets regulations and provides guidelines for workplace safety, but it is the employer's responsibility to implement these guidelines and provide a safe working environment for their employees. However, it is also the responsibility of each individual employee to follow proper safety protocols and report any hazards or accidents in the laboratory.

Question 10

What is the first and most important thing to do before repairing electrical laboratory equipment?

Accepted Answer

The first and most important thing to do before repairing electrical laboratory equipment is to unplug it. This ensures that there is no risk of electric shock or other accidents while working on the equipment.

Question 11

Where must fluid-resistant laboratory coats be worn?

Accepted Answer

Fluid-resistant laboratory coats must be worn when traveling to patient rooms to collect samples in order to prevent any potential contamination and protect the healthcare worker. They do not need to be worn in the cafeteria or restroom, and certainly not at home.

Question 12

Which of the following is acceptable safe practice?

Accepted Answer

Disposing of used glass slides in a sharps container is a safe practice to prevent injury and contamination.

Question 13

Which of the following procedures is safe from the production of an aerosol mist?

Accepted Answer

Manual differentials on blood films are safe from the production of an aerosol mist as they do not involve any force or manipulation that can cause particles to become airborne. Removing caps from specimen tubes, filling hemocytometers, and centrifuging uncapped specimens all have the potential to produce aerosol mist and should be done with caution and appropriate personal protective equipment.

Question 14

Personal protective clothing, which must be provided by the employer, includes:

Accepted Answer

Gloves are a form of personal protective equipment (PPE) that employers must provide to protect employees from hazards that can cause injury or illness.

Quiz 2: Safety in the Hematology Laboratory